Table Expected Got Nil?

Hello. I have three scripts, a local, server, and module script. The module script is in replicated storage and that is where I keep the player data. The local script is where the player inputs the data through buttons. The server script is where I combine everything together.

In the server script, I want to see if there's data in fluff1. If not, then it will insert the new data into fluff1. If there is data in fluff1, then it will insert the data into fluff2.

For some reason, it keeps saying "attempt to index nil with 'FluffName" at line 10 in the server script.

Module Script

local module = {}

module.FluffInventory = {
	Fluff1 = {
		BodyType = (""),
		BodyColor = (""),
		FluffName = (""),
		FluffGender = (""),
		FluffDescription = ("")
				},

	Fluff2 = {
		BodyType = (""),
		BodyColor = (""),
		FluffName = (""),
		FluffGender = (""),
		FluffDescription = ("")
				}
							}

return module

Local Script

local CurrentFluff = { --Sets Current Fluff Variables 
	BodyType = (""),
	BodyColor = {""},
	FluffName = (""),
	FluffGender = (""),
	FluffDescription = ("")				
						}

CurrentFluff.BodyType = "Spots"
CurrentFluff.FluffName = "brian"
CurrentFluff.FluffGender = "male"

game.ReplicatedStorage.Remotes.CloneFluff:FireServer(CurrentFluff)

Server Script

local DataModule = require(game.ReplicatedStorage.Scripts.DataModule)

Remotes.CloneFluff.OnServerEvent:Connect(function(player, NewFluff)
	local FindExistingFluffs = workspace.Fluffs:FindFirstChild(player.Name .. "'s Fluff")
	if FindExistingFluffs then
		FindExistingFluffs:Destroy()
	end

	for x = 1, 2 do
		if DataModule.FluffInventory["Fluff" .. 1].FluffName[1] == "" then
			print("found empty slot")
			DataModule.FluffInventory["Fluff" .. 1] = NewFluff
			break
		end
	end
end)

Try replacing your module script with this:

local module = {}

module.FluffInventory = {
    ["Fluff1"] = {
        BodyType = (""),
        BodyColor = (""),
        FluffName = (""),
        FluffGender = (""),
        FluffDescription = ("")
                },

    ["Fluff2"] = {
        BodyType = (""),
        BodyColor = (""),
        FluffName = (""),
        FluffGender = (""),
        FluffDescription = ("")
                }
                            }

return module

All I added was the square brackets and quotation marks for Fluff1 and Fluff2